A multi-stage oil-gas-liquid separator

Abstract

The utility model relates to petroleum exploitation equipment technical field especially a kind of multistage oil-gas liquid separator, including a cylinder (10), a first connector pipe (20) being connected to the cylinder (10) and being communicated with the cylinder (10) is arranged at the bottom end of the cylinder (10), a second connector pipe (30) being communicated with the cylinder (10) is arranged at the top end of the cylinder (10), a third connector pipe (40) is arranged on the sidewall of the middle part of the cylinder (10), a first baffling structure (50) is arranged on the inner wall surface of the upper portion of the cylinder (10) and a drainage control mechanism (60) is arranged on the cylinder (10), wherein a wire mesh demister 31 is arranged in the second connector pipe (30).The utility model has the characteristics of reasonable structure, high separation efficiency and not easy to block.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment technology, and in particular to a multi-stage oil-gas-liquid separator. Background Technology

[0002] Existing oil-gas-liquid separators typically employ a single-stage gravity settling tank or a simple cyclone tank structure. They rely primarily on a single separation chamber and simple baffles, such as inclined plates or baffles, to achieve initial gas-liquid separation. These oil-gas-liquid separators suffer from the following main problems: the axial inlet directly impacts the tank wall, easily causing droplet splashing and gas back-mixing; the single baffle only performs coarse separation, with a large number of droplets still carried by the rising airflow; there is no fine filtration device, resulting in a high residual droplet content at the gas phase outlet; manual observation of the liquid level and manual operation of valves lead to large errors and slow response; and the shared oil and water outlet causes impurities to accumulate at the bottom of the tank, making cleaning difficult and prone to clogging.

[0003] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-stage oil-gas-liquid separator with reasonable structure, high separation efficiency and less clogging.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A multi-stage oil-gas-liquid separator includes a cylinder, a first connecting pipe disposed at the bottom end of the cylinder and connected to the cylinder, a second connecting pipe disposed at the top end of the cylinder and connected to the cylinder, a third connecting pipe disposed on the middle side wall of the cylinder, a first baffle structure disposed on the upper inner wall surface of the cylinder, and a liquid discharge control mechanism disposed on the cylinder, wherein a wire mesh demister is disposed in the second connecting pipe.

[0006] As a further embodiment of this utility model, the cylinder includes a cylinder body and an elliptical end cap that covers the opening of the cylinder body.

[0007] As a further embodiment of this utility model, the third connecting pipe is horizontally positioned.

[0008] As a further embodiment of this utility model, the first deflection structure is a first deflection cone, which is fixed to the inner wall of the cylinder by two first umbrella-shaped support members.

[0009] As a further embodiment of this utility model, a second baffle structure is provided below the first baffle structure. The second baffle structure is a second baffle cone, and the second baffle cone is fixed to the inner wall of the cylinder by two second umbrella-shaped support members.

[0010] As a further embodiment of this invention, a protective plate is provided on the inner wall of the cylinder corresponding to the second baffle structure.

[0011] As a further embodiment of this utility model, a swirl plate is provided between the first deflector structure and the second deflector structure. The swirl plate includes a swirl plate body and a plurality of cones evenly distributed around the center of the swirl plate body. Each cone is provided with a cone-shaped body.

[0012] As a further embodiment of this utility model, the drainage control mechanism includes a float, a float level regulator, and a float valve. The float valve is disposed between a fourth connecting pipe on the side wall of the cylinder and one end of the float level regulator. The other end of the float level regulator is connected to a fifth connecting pipe on the side wall of the cylinder. The other end of the float level regulator is also connected to the float disposed inside the cylinder via a signal line passing through the fifth connecting pipe.

[0013] As a further embodiment of this utility model, the top peripheral wall of the cylinder is also provided with side wall lifting lugs.

[0014] As a further embodiment of this utility model, a skirt seat for supporting the cylinder is also provided below the cylinder body, and the skirt seat is fixed on a base plate.

[0015] Compared with the prior art, the advantages of this utility model are: 1. This application provides an inlet on the side wall of the cylinder, causing the fluid to rotate along the outer wall of the cylinder, thereby achieving preliminary gas-liquid separation; 2. A first baffle structure is installed inside the cylinder to guide the gas upward and the liquid downward, avoiding back mixing; 3. A wire mesh demister is installed in the second inlet pipe at the top of the cylinder to filter micron-sized droplets and improve the purity of the gas phase; 4. A drainage control mechanism is installed on the cylinder body, eliminating the need for manual operation and improving drainage accuracy; 5. A first connecting pipe is installed at the bottom of the cylinder to periodically discharge solid impurities, preventing blockages. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Appendix Figure 2 This is a schematic diagram of the swirl plate in an embodiment of the present invention.

[0017] The labels in the diagram are as follows: 10-Cylinder body, 20-First connecting pipe, 30-Second connecting pipe, 40-Third connecting pipe, 50-First baffle structure, 60-Drainage control mechanism, 70-Second baffle structure, 80-Swirl plate; 11-Cylinder body, 12-Elliptical head, 13-Side wall lifting lug, 14-Skirt seat, 15-Base plate; 51-First deflector cone, 52-First umbrella-shaped support; 71-Second baffle cone, 72-Second umbrella-shaped support, 73-Protective plate; 81-swirl plate body, 82-cone, 83-cone; 61-Float, 62-Float level regulator, 63-Float valve, 64-Fourth connecting pipe, 65-Fifth connecting pipe. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings: The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0019] In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example

[0021] like Figure 1 and Figure 2 As shown, this application discloses a multi-stage oil-gas-liquid separator, comprising a cylindrical body 10, the cylindrical body 10 including a cylindrical body 11 and an elliptical end cap 12 covering the opening of the cylindrical body 11, a first connecting pipe 20 disposed at the bottom end of the cylindrical body and communicating with the cylindrical body, a second connecting pipe 30 disposed on the elliptical end cap 12 and communicating with the elliptical end cap 12, the second connecting pipe 30 containing a wire mesh demister 31, a third connecting pipe 40 disposed on the middle side wall of the cylindrical body, the third connecting pipe 40 being horizontally arranged, and a first baffle structure 40 disposed on the upper inner wall surface of the cylindrical body. A drainage control mechanism 50 is installed on the main body of the cylinder. Through the above-described structural design, an inlet is provided on the side wall of the main body of the cylinder, and the fluid is rotated along the outer wall of the cylinder through a horizontally arranged third connecting pipe, achieving preliminary gas-liquid separation under the action of centrifugal force. A first baffle structure is provided inside the main body of the cylinder to guide the gas upward and the liquid downward, avoiding back mixing. A wire mesh demister is installed in the second connecting pipe on the elliptical head to capture droplets ≥10 micrometers, so that the gas phase purity reaches 99.9% or higher. The drainage control mechanism is installed on the cylinder, eliminating the need for manual operation and improving drainage accuracy. A first connecting pipe is provided at the bottom of the cylinder to periodically discharge solid impurities, preventing clogging.

[0022] Specifically, the first baffle structure 50 is a first baffle cone 51, which is a triangular cone. The first baffle cone 51 is fixed to the inner wall of the cylinder by two first umbrella-shaped support members 52. Since the upper part of the first baffle cone is open, it can guide the gas upward and the liquid downward. The liquid flows downward from the gap between the first baffle cone and the cylinder body.

[0023] As a preferred embodiment, a second baffle structure 70 is provided below the first baffle structure 50. The second baffle structure 70 is a second baffle cone 71, which is a truncated cone. The second baffle cone 71 is fixed to the inner wall of the cylinder by two second umbrella-shaped support members 72. Since the top of the second baffle cone is closed, the gap between the bottom and the cylinder body allows the airflow to change direction and pass through the gap, further colliding and trapping the liquid.

[0024] Specifically, a protective plate 73 is provided on the inner wall of the cylinder body at the location corresponding to the second baffle structure 70. When high-speed fluid impacts the protective plate, its flow direction changes drastically, generating strong disturbance and improving separation efficiency.

[0025] Specifically, a swirl plate 80 is provided between the first baffle structure 50 and the second baffle structure 70. The swirl plate 80 includes a swirl plate body 81 and a plurality of cones 82 evenly distributed around the center of the swirl plate body 81. Each cone 82 is provided with a cone-shaped body 83. Through the design of the swirl plate, the airflow rotates, and centrifugal force is used to throw the droplets toward the inner wall of the cylinder body and collect and fall.

[0026] Specifically, the drainage control mechanism 60 includes a float 61, a float level regulator 62, and a float valve 63. The float valve 63 is located between a fourth connecting pipe 64 on the side wall of the cylinder body and one end of the float level regulator 62. The other end of the float level regulator 62 is connected to a fifth connecting pipe 65 on the side wall of the cylinder body. The other end of the float level regulator 62 is also connected to the float 61 located inside the cylinder body via a signal line passing through the fifth connecting pipe 65. The axis of the fourth connecting pipe is set as the baseline of the cylinder body. The float level regulator monitors the level of the oil-water mixture through the float. When the set level is reached, the float valve opens to ensure that the oil layer is not disturbed by the water phase.

[0027] Specifically, the top periphery of the cylindrical body is also provided with side wall lifting lugs 13 to facilitate the transportation of the cylindrical body.

[0028] Specifically, a skirt 14 for supporting the cylindrical body is provided below the cylindrical body 11, and the skirt 14 is fixed on a base plate 15.

[0029] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, high separation efficiency, and resistance to clogging.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A multi-stage oil-gas-liquid separator, characterized in that: It includes a cylindrical body (10), a first connecting pipe (20) disposed at the bottom end of the cylindrical body (10) and connected to the cylindrical body (10), a second connecting pipe (30) disposed at the top end of the cylindrical body (10) and connected to the cylindrical body (10), a third connecting pipe (40) disposed on the middle side wall of the cylindrical body (10), a first baffle structure (50) disposed on the upper inner wall surface of the cylindrical body (10), and a drainage control mechanism (60) disposed on the cylindrical body (10), wherein a wire mesh demister (31) is disposed inside the second connecting pipe (30).

2. The multi-stage oil-gas-liquid separator according to claim 1, characterized in that: The cylinder (10) includes a cylinder body (11) and an elliptical end cap (12) covering the opening of the cylinder body (11).

3. The multi-stage oil-gas-liquid separator according to claim 2, characterized in that: The third connector (40) is set horizontally.

4. The multi-stage oil-gas-liquid separator according to claim 3, characterized in that: The first baffle structure (50) is a first baffle cone (51), which is fixed to the inner wall of the cylinder (10) by two first umbrella-shaped support members (52).

5. The multi-stage oil-gas-liquid separator according to claim 4, characterized in that: A second baffle structure (70) is provided below the first baffle structure (50). The second baffle structure (70) is a second baffle cone (71). The second baffle cone (71) is fixed to the inner wall of the cylinder (10) by two second umbrella-shaped support members (72).

6. The multi-stage oil-gas-liquid separator according to claim 5, characterized in that: A protective plate (73) is provided on the inner wall surface of the cylinder (10) corresponding to the second baffle structure (70).

7. The multi-stage oil-gas-liquid separator according to claim 6, characterized in that: A swirl plate (80) is provided between the first baffle structure (50) and the second baffle structure (70). The swirl plate (80) includes a swirl plate body (81) and a plurality of cones (82) evenly distributed around the center of the swirl plate body (81). Each cone (82) is provided with a cone-shaped body (83).

8. The multi-stage oil-gas-liquid separator according to claim 7, characterized in that: The drainage control mechanism (60) includes a float (61), a float level regulator (62), and a float valve (63). The float valve (63) is located between a fourth connecting pipe (64) on the side wall of the cylinder (10) and one end of the float level regulator (62). The other end of the float level regulator (62) is connected to a fifth connecting pipe (65) on the side wall of the cylinder (10). The other end of the float level regulator (62) is also connected to the float (61) located inside the cylinder (10) via a signal line passing through the fifth connecting pipe (65).

9. The multi-stage oil-gas-liquid separator according to claim 8, characterized in that: The top periphery of the cylinder (10) is also provided with side wall lifting lugs (13).

10. The multi-stage oil-gas-liquid separator according to claim 9, characterized in that: Below the cylinder (10), there is also a skirt (14) for supporting the cylinder (10), and the skirt (14) is fixed on a base plate (15).

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